Related Experiment Video

Updated: Sep 5, 2026

Microsurgical Clip Obliteration of Middle Cerebral Aneurysm Using Intraoperative Flow Assessment
18:50

Microsurgical Clip Obliteration of Middle Cerebral Aneurysm Using Intraoperative Flow Assessment

Published on: September 25, 2009

Warning signs in intracranial aneurysms

S Waga, K Otsubo, H Handa

    Surgical Neurology
    |January 1, 1975
    PubMed

    Insights

    Recognizing warning signs in patients with intracranial aneurysms is crucial. Early detection can help prevent devastating major hemorrhages, improving patient outcomes.

    Area of Science:

    • Neurology
    • Neurosurgery
    • Vascular Neurology

    Background:

    • Intracranial aneurysms pose a significant risk of major hemorrhage.
    • Identifying warning signs is critical for timely intervention.

    Purpose of the Study:

    • To analyze warning signs preceding major hemorrhage in patients with intracranial aneurysms.
    • To determine the interval between warning signs and major hemorrhage based on aneurysm location.

    Main Methods:

    • Retrospective analysis of 192 patients diagnosed with intracranial aneurysms.
    • Evaluation of warning signs and their temporal relationship to major hemorrhage.
    • Categorization of data based on aneurysm location.

    Main Results:

    • 59% of patients (113 out of 192) experienced warning signs before major hemorrhage.
    • The interval from warning signs to hemorrhage varied by aneurysm location: 16.9 days (anterior communicating/cerebral), 6 days (middle cerebral), and 7.3 days (intradural internal carotid).
    • Aneurysm location significantly influenced the incidence of warning signs.

    Conclusions:

    • Early recognition of warning signs in intracranial aneurysms is vital.
    • Understanding the time intervals associated with different aneurysm locations can aid in clinical management.
    • Prompt identification of warning signs may mitigate the severe consequences of major hemorrhage.

    More Related Videos

    Minimally Invasive Thumb-sized Pterional Craniotomy for Surgical Clip Ligation of Unruptured Anterior Circulation Aneurysms11:58

    Minimally Invasive Thumb-sized Pterional Craniotomy for Surgical Clip Ligation of Unruptured Anterior Circulation Aneurysms

    Published on: August 11, 2015

    Pre-Chiasmatic, Single Injection of Autologous Blood to Induce Experimental Subarachnoid Hemorrhage in a Rat Model09:14

    Pre-Chiasmatic, Single Injection of Autologous Blood to Induce Experimental Subarachnoid Hemorrhage in a Rat Model

    Published on: June 18, 2021

    Related Concept Videos

    Aneurysm I: Introduction01:30

    Aneurysm I: Introduction

    An aortic aneurysm is a localized outpouching or dilation at a weak point in the artery wall. It may involve different parts of the aorta, such as the abdominal aorta, aortic arch, or thoracic aorta.Etiological factorsSeveral disorders are associated with aortic aneurysms.Congenital causes, such as primary connective tissue disorders like Marfan syndrome, impact the integrity and strength of connective tissues, notably affecting the aorta. Marfan syndrome is a genetic disorder that specifically...
    Aneurysm II: Clinical Manifestations and Diagnostic Studies01:21

    Aneurysm II: Clinical Manifestations and Diagnostic Studies

    Thoracic, aortic arch and abdominal aneurysms are significant vascular conditions that can present with various clinical manifestations and lead to serious complications. Understanding these manifestations and the appropriate diagnostic studies is essential for effective management and treatment.Thoracic Aortic AneurysmsThoracic aortic aneurysms often remain asymptomatic until they reach a size that impinges on adjacent structures. They typically cause deep, diffuse chest pain that radiates to...
    Aneurysm III: Interprofessional Care01:26

    Aneurysm III: Interprofessional Care

    Aneurysm management involves either conservative medical therapy or surgical intervention, depending on the size and symptoms of the aneurysm. Conservative management is generally reserved for smaller, asymptomatic aneurysms, while larger or symptomatic aneurysms often necessitate surgical repair.Conservative Medical TherapyFor small, asymptomatic aneurysms, particularly abdominal aortic aneurysms (AAA) less than 5.5 centimeters in diameter, conservative medical therapy is recommended. This...
    Aneurysm IV: Nursing Management01:22

    Aneurysm IV: Nursing Management

    Vigilant monitoring for aneurysm rupture is essential for patients undergoing aortic surgery.Preoperative Nursing ManagementContinuously monitor the patient for manifestations of aneurysm rupture, such as pallor, weakness, tachycardia, hypotension, abdominal, back, groin, or periumbilical pain, changes in consciousness, and a pulsating abdominal mass. Regularly assess the patient's peripheral pulses.Instruct the patient to consume a clear liquid diet the day before surgery and administer...
    Hemorrhagic Stroke l: Introduction01:17

    Hemorrhagic Stroke l: Introduction

    A hemorrhagic stroke is an acute neurological event that occurs when a weakened cerebral blood vessel ruptures, allowing blood to accumulate within or around the brain. The sudden release of blood forms a focal hematoma that increases intracranial pressure, displaces neural tissue, and can obstruct cerebrospinal fluid pathways. These effects may be compounded by intraventricular extension of the hemorrhage, cerebral edema, or compression of adjacent structures, all of which contribute to...
    Increased Intracranial Pressure l: Introduction01:14

    Increased Intracranial Pressure l: Introduction

    Intracranial hypertension is a sustained elevation of intracranial pressure (ICP) above 22 mm Hg. In supine adults, normal ICP is ~7–15 mm Hg.The rigid, nonexpandable cranium contains three components—brain tissue, blood, and cerebrospinal fluid (CSF)—that total ~1,700 mL in a typical adult: 1,400 mL brain (~80%), 150 mL blood (~10%), and 150 mL CSF (~10%). According to the Monro–Kellie doctrine, total intracranial volume is effectively fixed. When one component expands, CSF and venous blood...